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path: root/src/backend/executor/nodeHashjoin.c
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Diffstat (limited to 'src/backend/executor/nodeHashjoin.c')
-rw-r--r--src/backend/executor/nodeHashjoin.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/src/backend/executor/nodeHashjoin.c b/src/backend/executor/nodeHashjoin.c
index 668ed871e19..252960c81c5 100644
--- a/src/backend/executor/nodeHashjoin.c
+++ b/src/backend/executor/nodeHashjoin.c
@@ -92,6 +92,14 @@ ExecHashJoin(HashJoinState *node)
*/
for (;;)
{
+ /*
+ * It's possible to iterate this loop many times before returning a
+ * tuple, in some pathological cases such as needing to move much of
+ * the current batch to a later batch. So let's check for interrupts
+ * each time through.
+ */
+ CHECK_FOR_INTERRUPTS();
+
switch (node->hj_JoinState)
{
case HJ_BUILD_HASHTABLE:
@@ -247,13 +255,6 @@ ExecHashJoin(HashJoinState *node)
case HJ_SCAN_BUCKET:
/*
- * We check for interrupts here because this corresponds to
- * where we'd fetch a row from a child plan node in other join
- * types.
- */
- CHECK_FOR_INTERRUPTS();
-
- /*
* Scan the selected hash bucket for matches to current outer
*/
if (!ExecScanHashBucket(node, econtext))